Trouton’s rule states that for many liquids at their normalboiling points, the standard molar entropy of vaporizationis about 88 J/mol-K. (a) Estimate the normal boiling pointof bromine, Br2, by determining ΔH°vap for Br2. Assume that ΔH°vap remains constantwith temperature and that Trouton’s rule holds. (b) Look upthe normal boiling point of Br2 in a chemistry handbook orat the WebElements website (www.webelements.com) andcompare it to your calculation. What are the possible sourcesof error, or incorrect assumptions, in the calculation?

Q: It refers to how a circumstance can occur without the help of any external factors? O a Entropy Ob…

A: Spontaneity ----> it refers to the circumstances which can occur without any external factors.…

Q: Here is the reaction of carbon monoxide and hydrogen to form gaseous methanol at 298 K. (a)…

A: (a) ∆S° = -219.2 J/K (b) Sign of ∆S° = -ve (c) ∆H° = -90.5 kJ (d) ∆G° = -ve ( spontaneous reaction )

Q: Complete the table below in the picture using calculating dG from dH and dS

A: Given:Temperature = 99 oC = 372 K.ΔS = -2383.0 KJΔH = -852.0 KJChemical reaction:

Q: Methanol is relatively inexpensive to produce. Much consideration has been given to using it as a…

A: ∆SCH3OH = 126.8 kJ/mol ∆SCH4 = 186.264 kJ/mol ∆So2 = 205 kJ/mol

Q: The normal boiling point of ethanol is 73.2˚C, and its molar enthalpy of vaporization is 41.2…

A: Given : Normal boiling point of ethanol = 73.2 ˚C And enthalpy of vaporization, ΔHvap = 41.2 KJ/mol…

Q: At what temperature will a reaction become spontaneous, if its AS is +100.3 J/mol and AH° is +48.90…

A: Given : ΔSo = 100.3 J/mol. And ΔHo = 48.90 KJ/mol = 48900 J/mol.…

Q: Consider the reaction 2O(g) → O2(g) Predict the signs of ΔH and ΔS Would the reaction be more…

A: Given: 2O(g) → O2(g)

Q: Give Relation of Entropy Temperature Explain and AG DH -TOS

A: The Gibbs free energy is explained about the spontaneity of the reaction and it is mainly depends…

Q: Cyclopropane and propylene are isomers that both havethe formula C3H6. Based on the molecular…

A:

Q: Hi, I need help with this step-by-step please thank you.

A: For any reaction that proceeds spontaneously, the value of free energy that is Delta G remains…

Q: Calculate the entropy of vaporization of water at 25 °c from thermodynamic data and its enthalpy of…

A: First calculate the entropy change of the given process at 25oC Given, The temperature of the system…

Q: If a particular reaction has   ΔrH = +30 kJ mol–1    and    ΔrS = –60 J K–1mol–1, when do you expect…

A:

Q: (a) Using the heat of vaporization in Appendix B, calculatethe entropy change for the vaporization…

A: a) First calculate the entropy change of the given process at 25oC Given, The temperature of the…

Q: Determine the: a. Heat of the reaction, AH b. AS c. AG at 25°C for the combustion of ammonia,…

A: a.

Q: Predict the sign of the entropy change of the system foreach of the following reactions:(a) N2(g) +…

A: We will answer first three subparts at a time since you have not mentioned the exact subparts that…

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A: Given information,    Temperature = 1270C    Pressure is constant

Q: It is determined that a particular chemical reaction has AH°rxn = 105 kJ and As°rxn = 252 JK1.…

A: For spontaneous reaction delta G must be negative....

Q: Dinitrogen tetroxide (N2O4) decomposes to nitrogen dioxide (NO2). If ΔH° = 58.02 kJ/mol and ΔS° =…

A:

Q: Calculate the standard entropy change ΔS° for the following reaction, using the tabulated standard…

A: Consider the given reaction is as follows; N2 g + 3 H2 g → 2 NH3 g Given information is as follows;…

Q: Place the following substances in order of decreasing standard molar entropy, S°: carbon monoxide…

A: The measure of randomness or disorder of the molecules is called as molar entropy. It is a state…

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2H9O(s) --> 2Hg(I) + O2(g)…

A:

Q: Isomers are molecules that have the same chemical formulabut different arrangements of atoms, as…

A: a.

Q: Which statements are true? O ASsys = -ASurr for ice melting at room temperature. O All other…

A: The correct statements are:

Q: The following reaction for the production of hydrogen cyanide is spontaneous under standard…

A: In given reaction , formation of HCN is a endothermic process.

Q: TABLE 17.1 | The Microstates That Give a Particular Arrangement (State) Arrangement Microstates…

A:

Q: 3. Calculate the standard free-energy change ( AG° ) at 25°C for the reaction 2H2(g) + N2(g) =N¿H4…

A:

Q: 4. At what temperature the reaction becomes spontaneous? 5. The vant Hoff's equation works if…

A: The Vant't Hoff equation gives us the relation between standard Gibbs free energy change ∆G and…

Q: Why is a reaction with a negative Gibbs free energy, AG, spontaneous? Explain.

A:

Q: N2H4 (g) + H2 (g) ---> 2N2H3 Would you expect the entropy change for the above reaction to >0,…

A: Given,One mole of hydrazine reacts with one mole of hydrogen produces two moles of ammonia.

Q: At 298 K, the formation of ammonia has a negative So osys . 2N2(g) + 3H2(g) → 2NH3(g) Soosys = -…

A:

Q: For a chemical reaction that is spontaneous at standard conditions, which of the following holds?…

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Q: Which of the following processes are spontaneous andwhich are nonspontaneous: (a) the ripening of a…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: For the following reaction, calculate the a.ΔrxnH, b.ΔrxnS, c. ΔrxnG (25°C) of the following…

A: Given, H2 (g) + I2 (s) --> 2 HI (g) At 25 °C, the a.ΔrxnH, b.ΔrxnS, c. ΔrxnG is:

Q: The reaction between but-1-ene and water vapor produces butan-1-ol. The standard entropy values (S)…

A:

Q: By examining the following graphs, predict which element- copper or gold-has the higher absolute…

A: To predict which element Cu or Au has a higher absolute entropy at a temperature of 200 K.

Q: Arrange Au(s), Al(s), and C(s) in order of increasing entropy. Assume the three solids are at the…

A: The correct order of entropy is given below

Q: Read the following statements. Select all that are true. O For a spontaneous process, Asys S > 0 O…

A: Entropy of universe is continuously increasing. So change in entropy is positive.

Q: For a new reaction A+B--> C an equilibrium constant of 3.2x10-6 was obtained at 284 K.  In a…

A: The question is based on the concept of chemical equilibrium and chemical thermodynamics. We have…

Q: . What is the sign of the entropy change of the system (ASsys)(methanol (liq, at 290 K) → methanol…

A: In given reaction methanol at liquid state gets converted to methanol at gaseous state. Generally…

Q: For a chemical reaction to be spontaneous at all temperatures, which of the following conditions…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: The accompanying diagram shows how entropy varieswith temperature for a substance that is a gas at…

A: Entropy is the measure of the randomness. More the randomness , more the entropy. Thus , entropy of…

Q: Octane is typical of the components of gasoline. Estimate (a) the entropy of vaporization, (b) the…

A:

Q: The normal freezing point of n-octane 1C8H182 is -57 °C. In what temperature range is the freezing…

A: For freezing process  ∆H < 0  and ∆S < 0  So,  ∆G = ∆H - T∆S  at low temperature  ∆G < 0…

Q: A reaction has AH°= 100 kJ/mol and AS°= 250 J/mol.K. Is the reaction spontaneous at room…

A:

Q: (a) What sign for ΔS do you expect when the volume of0.200 mol of an ideal gas at 27 °C is increased…

A: a) The sign of change in entropy needs to be determined if 0.200 mol of an ideal gas at a…

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen:What is the standard change…

A:

Q: What is the total entropy change at 25oC for the reaction below, if the standard entropies of…

A: Given,∆S0 for Carbon= 5.74 J/mol K∆S0 for Hydrogen= 130.68 J/mol K∆S0 for C7H16= 130.68 J/mol K